Matter & Motion: Winter 2001

Chemistry Homework Answer Key #4

Chapter 9 - Spontaneous Processes and Thermodynamic Equilibrium
 

47.     T1 = 298 K; K1 = 6.8
         T2 = 473 K; K2 = 1.21 ´ 10-3

 

 


 


 


51.     DH° = -92.2 kJ/mol

         T1 = 298 K K1 = 5.9 ´ 105

 

 


 


 

K2 = 0.00433


Supplemental Problem:

Here's the plot of the datur…
 


 

The slope and intercept are related to DH° and DS° by the following:
 


The value of DG can be calculated two ways:


 


 

The agreement between the two calculations is excellent. What are the odds of that?